﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Calculadora
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        double valorResult;
        string op;

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 1;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 2;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 3;
        }

        private void button4_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 4;
        }

        private void button5_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 5;
        }

        private void button6_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 6;
        }

        private void button7_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 7;
        }

        private void button8_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 8;
        }

        private void button9_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 9;
        }

        private void buttonPonto_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + ".";
        }

        private void button0_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + 0;
        }

        private void buttonMais_Click(object sender, EventArgs e)
        {
            
            valorResult = Convert.ToDouble(textBox1.Text);
            op = "+";
            textBox1.Text = "";

        }

        private void buttonMenos_Click(object sender, EventArgs e)
        {
            valorResult = Convert.ToDouble(textBox1.Text);
            op = "-";
            textBox1.Text = "";
        }

        private void buttonMulti_Click(object sender, EventArgs e)
        {
            valorResult = Convert.ToDouble(textBox1.Text);
            op = "*";
            textBox1.Text = "";
        }

        private void buttonDivide_Click(object sender, EventArgs e)
        {
            valorResult = Convert.ToDouble(textBox1.Text);
            op = "/";
            textBox1.Text = "";
        }
        private void buttonIgual_Click(object sender, EventArgs e)
        {
            switch (op)
            {
                case "+": valorResult = valorResult + Convert.ToDouble(textBox1.Text);
                    textBox1.Text = Convert.ToString(valorResult);
                    valorResult = 0.0;
                    break;
                case "-": valorResult = valorResult - Convert.ToDouble(textBox1.Text);
                    textBox1.Text = Convert.ToString(valorResult);
                    valorResult = 0.0;
                    break;
                case "*": valorResult = valorResult * Convert.ToDouble(textBox1.Text);
                    textBox1.Text = Convert.ToString(valorResult);
                    valorResult = 0.0;
                    break;
                case "/": valorResult = valorResult / Convert.ToDouble(textBox1.Text);
                    textBox1.Text = Convert.ToString(valorResult);
                    valorResult = 0.0;
                    break;
            }

            

        }

        
    }
}
